Pentium D Install Shows Single Core

Are you sure this is a true dual core processor? Alot of Pentium D's just have hyper-threading which will show up as 2 processors in both windows and linux. Could you please issue the command in a terminal 'dmesg > dmesg.txt" and attach dmesg.txt to this bug report.
Thanks,
David P.

David,

A Pentium D is a dual core CPU. It is two Pentium 4E stuck together for the 800 series. I have an 830.

Anyway, this can be closed. It turned out to be an ACPI issue. It doesn't make sense, but after I reset the CMOS to the defaults, everything is working correctly. I wished I saved a dmesg result before doing it because it still doesn't make sense that the Live CD would detect it fine and not the installed version.

I know how hard it is to fix bugs and I'm sorry I didn't get as much information as I could. This is now the /proc/cpuinfo

processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) D CPU 3.00GHz
stepping : 4
cpu MHz : 2800.000
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est cid cx16 xtpr
bogomips : 6005.47
clflush size : 64

processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) D CPU 3.00GHz
stepping : 4
cpu MHz : 2800.000
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est cid cx16 xtpr
bogomips : 6000.35
clflush size : 64

closed by authors request.